package com.bobo.demo.Thread.sync;


//信号灯法
public class TestPC2 {
    public static void main(String[] args) {
        TV tv = new TV();
        new Player(tv).start();
        new Audience(tv).start();

    }
}

//生产者 -》 演员
class Player extends Thread {
    TV tv;
    public Player(TV tv) {
        this.tv = tv;
    }

    @Override
    public void run() {
        for (int i = 0; i < 10; i++) {
            if(i % 2 == 0) {
                this.tv.play("快乐星球");
            }
            if(i % 3 == 0) {
                this.tv.play("小鲤鱼历险记");
            }
        }
    }
}

//消费者 -》 观众
class Audience extends Thread {
    TV tv;

    public Audience(TV tv) {
        this.tv = tv;
    }

    @Override
    public void run() {
        for (int i = 0; i < 10; i++) {
            tv.watch();
        }
    }


}

//产品  -》 节日
class TV {

    //演员表演 观众等待 T
    //观众观看 演员等待 F

    String voice;//表演的节目
    boolean flag = true;

    //表演
    public synchronized void play(String voice) {
        while(!flag){//观众观看
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        System.out.println("演员表演了"+voice);

        this.notifyAll();//通知观众观看
        this.voice = voice;
        this.flag = !this.flag;
    }


    //观看
    public synchronized void watch() {
        while(flag){//演员表演
            try {
                this.wait();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        System.out.println("观看了:"+this.voice);

        this.notifyAll();//通知演员表演
        this.flag = !this.flag;
    }
}


